Greenhouse Shade Cloth - 70% Black, Extra Strength Length (ft):120 When using high purity helium

When using high purity helium with latex a barrier should be used like HiFloat or Polyvinyl alcohol

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Weight: 70 lbs

and seedlings

Greenhouse Shade Cloth - 70% Black, Extra Strength Length (ft):120 When using high purity heliumBlack Heavy Duty Shade Cloth Safeguard and shield your plants and buildings from the harsh rays of the sun with this 70% black extra strong monofilament shade cloth. Available in 20', 32', and 42' widths, this UV treated knitted cloth is a favorite in hot regions due to its durability and ability to retain its elasticity, even under intense heat. Features UV treated to prevent degradation Monofilament 8 year warranty & 16 Year Life Expectancy 70%